Port Stephens Council has advised of the following:

Road closures

Water over the road

Other closures

3pm Thursday:

Members of the community in need of sandbags are being advised that they collect them from the Port's SES depots.

NSW SES - Port Stephens Unit: Pre-filled sandbags available to pick up at 31 Rees James Road, Raymond Terrace.

NSW SES - Tomaree: Sandbags available for collection from 55A Sandy Point Road, Corlette.

2pm Thursday:

Hunter Water has advised of a water outage in Soldiers Point and Salamander Bay.

"Due to the complex nature of the repairs required, at this stage we are unable to provide an estimated time of restoral."

Port Stephens Council has advised of the following:

Road closures

Water over the road

Other closures

The NSW Bureau of Meteorology advises that Nelson Bay has received 150mm of rain in the past 24 hours. Williamtown has received 43.6mm.

Nelson Bay Golf Club has been closed due to water damage.

"The clubhouse will re-open tomorrow, including the Bluewater Grill restaurant. However, with more severe weather forecast, the golf course will remain closed. We will provide regular updates on the golf course," the club stated on its Facebook page.

The State Emergency Service advises that people should:

1pm Thursday:

A flood warning from the Bureau of Meteorology and NSW State Emergency Service has been issued for the Port's rivers.

Thursday's heavy rainfall has the potential to cause minor to moderate flooding along the Mid North Coast from Thursday and is expected to spread south towards the Hunter during Friday and Saturday.

The bureau said the Lower Hunter River faced possible minor-to-moderate flooding, while the Myall, Paterson and Williams rivers faced potential minor flooding and Karuah River local flooding.

12pm Thursday:

Port Stephens Council has closed Foreshore Drive at Corlette, other roads around the area, Samurai Beach and the campground due to heavy rainfall on Thursday.

The council said about 12pm that it was "unsafe for vehicles" to travel near Samurai Beach.

"We will update everyone when the beach and campground reopen," the council said.

Foreshore Drive has been closed due to a partial collapse of the road.

"Please drive safely and use alternate routes through this area," the council said.

Port Stephens Council has advised of the following road closures:

The council said water is currently over:

Ferodale Road at Medowie was reopened about 12.35pm.

Due to the severe weather conditions, the council's mobile library service for Thursday has been cancelled.

Endless Summer events planned for the Shoal Bay foreshore on Saturday have also been cancelled.

Alexander Park Dressage Club has opened its grounds in the Bruce MacKenzie Complex off Richardson Road in Salt Ash as a flood evacuation muster point.

"All horses are to be housed in the covered yards please. No horses in the post and rail warm up arena. Don't forget your water buckets and adequate feed for your equine friend," the club posted to its Facebook page on Thursday morning.

Where to find the Bruce MacKenzie Complex:

Karuah Rural Fire Brigade was reporting about 10am that the northbound lane of the Pacific Highway past Heatherbrae was covered with water.

Medowie Football Club posted a video to its Facebook page about 11am showing its grounds, Yulong Oval, under water.

EARLIER Thursday:

A warning has been issued for possible flash flooding in the region as heavy rainfall is predicted to lash the Hunter from Thursday and through to the weekend.

The NSW State Emergency Service issued the warning due to forecast rainfall of 50 to 100mm across the Hunter, Central Coast and Mid North Coast with isolated heavy falls up to 200mm possible.

In Port Stephens, the NSW Bureau of Meteorology has forecast daily rain falls of up to 45mm from Thursday to Saturday. Heavier rainfall is predicted for Nelson Bay on Friday, which is forecast to receive between 70 and 120mm of rain.

NSW SES Northern Zone Chief Superintendent Steve Patterson urged residents and motorists to be prepared.

"Rainfall over the last few weeks in the Mid North Coast, Central Coast and Hunter area has contributed to a number of soaked catchments," he said. "This means water runoff and flash flooding is more likely in these areas.

"Bring in or secure any outdoor items in the yard or on the balcony, check your gutters are clear and your roof is in good condition, trim any overhanging branches and take care when travelling in severe weather conditions. If you come across a flooded road please make the safe decision. Turn around, it's just not worth the risk."

Hunter Weather said the rain was a result of two low pressure troughs developing while a high pressure system was meandering east.

"This is going to help keep the troughs in place, and with the loaded moisture in the atmosphere, this will all combine to produce significant rainfall."

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